[10.08] HST NICMOS Images of the HH 7-11 Outflow

New Hubble Space Telescope NICMOS images of the HH 7-11
outflow are presented. As expected from ground based images
the outflow is strong and clearly detected in the H2
(1,0) S(1) 2.121\mum~emission, but surprisingly does not
show P\alpha 1.87\mum~emission. In the near-IR H2
emission HH 7 is the most prominent feature, displaying a
very complete arc-like structure, in contrast with other HH
objects which have a more chaotic morphology at their
leading working surfaces. At the position of the SVS 13
source, the continuum subtracted H2 image shows a clear
indication of the jet with an extension of ~
2\arcsec~following the the overall position angle of the
outflow. Thus our observations strengthened the idea of SVS
13 as the driving source of the HH 7-11 outflow (Bachiller
et al. 2000; astro-ph-0009439). A comparison with the 1998
archival WFPC2 images in H\alpha and [S~II] \lambda
\lambda 6717/31 suggests that the Mach Disk plays a major
role in the atomic/ionic emission.